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1bfbee0e20
Done with: go get go@1.18 go mod tidy go fix ./... Using go1.21.3. Also update code generators to use only the new go:build lines, not the old +build ones. For golang/go#60268. Change-Id: I6aabc42efb6ab3329981100e1db2263aac5e92a6 Reviewed-on: https://go-review.googlesource.com/c/sys/+/534222 Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
95 lines
2.0 KiB
Go
95 lines
2.0 KiB
Go
// Copyright 2021 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build dragonfly || freebsd || linux || netbsd || openbsd || solaris
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package unix_test
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import (
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"testing"
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"golang.org/x/sys/unix"
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)
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func TestPipe2(t *testing.T) {
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const s = "hello"
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var pipes [2]int
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err := unix.Pipe2(pipes[:], 0)
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if err != nil {
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t.Fatalf("pipe2: %v", err)
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}
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r := pipes[0]
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w := pipes[1]
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go func() {
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n, err := unix.Write(w, []byte(s))
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if err != nil {
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t.Errorf("bad write: %v", err)
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return
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}
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if n != len(s) {
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t.Errorf("bad write count: %d", n)
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return
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}
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err = unix.Close(w)
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if err != nil {
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t.Errorf("bad close: %v", err)
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return
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}
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}()
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var buf [10 + len(s)]byte
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n, err := unix.Read(r, buf[:])
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if err != nil {
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t.Fatalf("bad read: %v", err)
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}
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if n != len(s) {
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t.Fatalf("bad read count: %d", n)
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}
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if string(buf[:n]) != s {
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t.Fatalf("bad contents: %s", string(buf[:n]))
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}
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err = unix.Close(r)
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if err != nil {
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t.Fatalf("bad close: %v", err)
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}
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}
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func checkNonblocking(t *testing.T, fd int, name string) {
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t.Helper()
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flags, err := unix.FcntlInt(uintptr(fd), unix.F_GETFL, 0)
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if err != nil {
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t.Errorf("fcntl(%s, F_GETFL) failed: %v", name, err)
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} else if flags&unix.O_NONBLOCK == 0 {
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t.Errorf("O_NONBLOCK not set in %s flags %#x", name, flags)
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}
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}
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func checkCloseonexec(t *testing.T, fd int, name string) {
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t.Helper()
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flags, err := unix.FcntlInt(uintptr(fd), unix.F_GETFD, 0)
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if err != nil {
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t.Errorf("fcntl(%s, F_GETFD) failed: %v", name, err)
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} else if flags&unix.FD_CLOEXEC == 0 {
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t.Errorf("FD_CLOEXEC not set in %s flags %#x", name, flags)
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}
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}
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func TestNonblockingPipe2(t *testing.T) {
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var pipes [2]int
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err := unix.Pipe2(pipes[:], unix.O_NONBLOCK|unix.O_CLOEXEC)
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if err != nil {
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t.Fatalf("pipe2: %v", err)
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}
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r := pipes[0]
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w := pipes[1]
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defer func() {
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unix.Close(r)
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unix.Close(w)
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}()
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checkNonblocking(t, r, "reader")
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checkCloseonexec(t, r, "reader")
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checkNonblocking(t, w, "writer")
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checkCloseonexec(t, w, "writer")
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}
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